CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Real Estate:
Lease revenues	$ 369,159	$ 331,902	$ 1,090,619	$ 953,981
Investment Management:
Revenues	448,553	383,622	1,328,921	1,076,457
Operating Expenses
Depreciation and amortization	144,771	132,181	444,728	362,654
Operating property expenses	26,570	9,357	74,738	15,335
General and administrative	23,258	22,299	74,494	66,224
Reimbursable tenant costs	20,498	18,874	62,997	52,538
Impairment charges — real estate	15,173	0	15,173	26,385
Property expenses, excluding reimbursable tenant costs	13,021	11,244	31,164	36,874
Stock-based compensation expense	9,050	5,511	25,811	23,102
Merger and other expenses	4,152	17,667	5,595	17,329
Reimbursable costs from affiliates	97	344	322	2,414
Impairment charges — Investment Management goodwill	0	29,334	0	29,334
Total operating expenses	256,590	246,811	735,022	632,189
Other Income and Expenses
Interest expense	(76,974)	(59,022)	(219,658)	(151,492)
Earnings from equity method investments	4,978	11,304	14,569	23,477
Non-operating income	4,862	9,263	13,997	23,783
Other gains and (losses)	2,859	(15,020)	9,593	(1,021)
Gain (loss) on sale of real estate, net	2,401	(4,736)	181,958	37,631
Gain on change in control of interests	0	33,931	0	33,931
Total other income and expenses	(61,874)	(24,280)	459	(33,691)
Income before income taxes	130,089	112,531	594,358	410,577
Provision for income taxes	(5,090)	(8,263)	(30,338)	(21,598)
Net Income	124,999	104,268	564,020	388,979
Net loss attributable to noncontrolling interests	41	660	20	622
Net Income Attributable to W. P. Carey	$ 125,040	$ 104,928	$ 564,040	$ 389,601
Basic earnings per share (in dollars per share)	$ 0.58	$ 0.52	$ 2.64	$ 1.98
Diluted earnings per share (in dollars per share)	$ 0.58	$ 0.51	$ 2.63	$ 1.98
Weighted-Average Shares Outstanding
Basic (in shares)	215,097,114	203,093,553	214,052,907	196,382,433
Diluted (in shares)	215,252,969	204,098,116	214,427,425	197,264,509
Real Estate
Real Estate:
Lease revenues	$ 369,159	$ 331,902	$ 1,090,619	$ 953,981
Income from finance leases and loans receivable	27,575	20,637	75,641	56,794
Operating property revenues	49,218	21,350	140,780	30,279
Other lease-related income	2,310	8,192	20,723	24,905
Investment Management:
Operating property revenues	49,218	21,350	140,780	30,279
Revenues	448,262	382,081	1,327,763	1,065,959
Investment Management
Real Estate:
Operating property revenues	291	1,541	1,158	10,498
Investment Management:
Operating property revenues	291	1,541	1,158	10,498
Operating Expenses
Impairment charges — Investment Management goodwill		29,300		29,300
Investment Management | Asset management revenue
Real Estate:
Operating property revenues	194	1,197	836	8,084
Investment Management:
Operating property revenues	194	1,197	836	8,084
Investment Management | Reimbursable costs from affiliates
Real Estate:
Operating property revenues	97	344	322	2,414
Investment Management:
Operating property revenues	$ 97	$ 344	$ 322	$ 2,414